Simulation on mechanical properties of Al/PTFE based on mesoscopic statistical model

被引：0
作者：
Maimaitituersun W. [1 ]
Ge C. [1 ]
Dong Y. [1 ]
Song Q. [1 ]
机构：
[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing
来源：
Dong, Yongxiang (dongyongx@bit.edu.cn) | 2016年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 33期
关键词：
Al/PTFE; Mesoscale model; Microvoids; Periodic boundary condition; Random distribution; Representative volume element;
D O I：
10.13801/j.cnki.fhclxb.20160315.015
中图分类号：
学科分类号：
摘要：
Macro mechanical behavior of Al particles reinforced polytetrafluoroethylene(Al/PTFE) was studied by finite element method. According to statistics on Al particles and microvoids by SEM, representative volume element (RVE) models considering particles and microvoids distribution as well as geometry were reproduced. By using ABAQUS finite element software, mechanical behavior under uniaxial compression of both two dimension and three dimension models were simulated. Also periodic boundary condition (PBC) was applied to improve accuracy of calculation. Quasistatic stress-strain curves of composites of various particle fractions were analyzed, and especially results from simulations and experiments were compared. The results indicate that both two dimension and three dimension models are effective methods to predict the mechanical behavior of Al/PTFE, and two dimension models are more efficient. Furthermore, the validity and effectiveness of the PBC are verified. © 2016, BUAA Culture Media Group Ltd. All right reserved.
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页码：2528 / 2536
页数：8
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